Analysis on Ecological Restoration in Different Ecogeographical Divisions of the Tibetan Plateau

doi:10.11733/j.issn.1007-0435.2023.04.030

Acta Agrestia Sinica ›› 2023, Vol. 31 ›› Issue (4): 1211-1225.DOI: 10.11733/j.issn.1007-0435.2023.04.030

Analysis on Ecological Restoration in Different Ecogeographical Divisions of the Tibetan Plateau

CHEN Mei-qi^1,2, SHAO Quan-qin^1,2, NING Jia¹, LIU Guo-bo³, LIU Shu-chao^1,2, NIU Li-nan^1,2, ZHANG Xiong-yi^1,2, HUANG Hai-bo¹

1. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Qinghai University, Xining, Qinghai Province 810016, China

Received:2022-09-23 Revised:2022-11-22 Published:2023-04-28

青藏高原不同生态地理区生态恢复状况分析

陈美祺^1,2, 邵全琴^1,2, 宁佳¹, 刘国波³, 刘树超^1,2, 牛丽楠^1,2, 张雄一^1,2, 黄海波¹

1. 中国科学院地理科学与资源研究所中国科学院陆地表层格局与模拟重点实验室, 北京 100101;
2. 中国科学院大学, 北京 100049;
3. 青海大学, 青海西宁 810016

通讯作者: 邵全琴,E-mail:shaoqq@igsnrr.ac.cn
作者简介:陈美祺(1999-),女,河南信阳人,博士研究生,主要从事地图学与地理信息系统研究,E-mail:chenmeiqi4040@igsnrr.ac.cn
基金资助:
国家自然科学基金(NO.42071289)；中国科学院战略性先导科技专项(XDA23100203)资助

Abstract

Abstract: To protect and restore degraded ecosystems,China has implemented a number of policies and ecological projects in the Tibetan Plateau. It is of great significance to grasp the state of ecosystem restoration for making relevant strategies scientifically. Based on various data and models such as InVEST,RUSLE and RWEQ,five indicators of the net primary productivity (NPP),the fractional vegetation cover (FVC),the water conservation,the soil retention and the windbreak and sand fixation were calculated. As a result,the degree and potential of ecosystem restoration in the Tibetan Plateau from 2000 to 2019 had been comprehensively analyzed. The results showed as below:(1) The ecosystem function of the Tibet Plateau was gradually improved,but there was still a tendency of degradation in some areas. The regions exhibiting 'basically remained stable’ covered the largest area,accounting for 42.03% of the Tibet Plateau. (2) The restoration potential index of the FVC in the Tibet Plateau was 29.57%. The regions with high FVC recovery potential index are mainly located in the central and western regions of the Tibetan Plateau. Policies for ecological restoration should be different for such regions. The government should prioritize the restoration strategies in areas with better climatic conditions and high restoration potential. For the areas with high potential for ecological restoration but with extreme difficulty,it is suitable to integrate artificial restoration and natural restoration to obtain a better effect of ecological projects.

Key words: Tibet Plateau, Ecosystem, Ecological restoration degree, Restoration potential

摘要： 为保护和修复青藏高原生态系统，我国在青藏高原实施了一系列政策与生态工程。全面掌握生态系统恢复状况对科学制定区域生态系统保护与恢复策略具有重大意义。本文选取植被净初级生产力、植被覆盖度、水源涵养、土壤保持和防风固沙5个指标，利用地面和遥感数据并结合生态系统服务和权衡的综合评估(Integrated valuation of ecosystem services and trade-offs，InVEST)模型、修正的通用水土流失方程(Revised universal soil loss equation，RUSLE)和修正风蚀方程(Revised wind erosion equation,RWEQ)等方法，评估2000—2019 年青藏高原生态系统恢复程度与恢复潜力。结果表明：青藏高原生态系统功能逐步提升，但部分地区仍有退化趋势。其中，生态系统基本稳定的面积最大，占比为42.03%；青藏高原植被覆盖度恢复潜力指数为29.57%。其中，植被覆盖度恢复潜力指数较大的地区主要位于青藏高原中西部。政府未来应因地制宜，对水热环境较好且恢复潜力大的地区积极采取相关措施，对生态恢复潜力大但恢复难度较高的地区采取人工修复和自然恢复相结合的方法，提高生态工程效率。

关键词: 青藏高原, 生态系统, 恢复程度, 恢复潜力

CLC Number:

X171.4

CHEN Mei-qi, SHAO Quan-qin, NING Jia, LIU Guo-bo, LIU Shu-chao, NIU Li-nan, ZHANG Xiong-yi, HUANG Hai-bo. Analysis on Ecological Restoration in Different Ecogeographical Divisions of the Tibetan Plateau[J]. Acta Agrestia Sinica, 2023, 31(4): 1211-1225.

陈美祺, 邵全琴, 宁佳, 刘国波, 刘树超, 牛丽楠, 张雄一, 黄海波. 青藏高原不同生态地理区生态恢复状况分析[J]. 草地学报, 2023, 31(4): 1211-1225.

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Analysis on Ecological Restoration in Different Ecogeographical Divisions of the Tibetan Plateau

青藏高原不同生态地理区生态恢复状况分析

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